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diff --git a/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_size.sh.cpp b/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_size.sh.cpp
new file mode 100644
index 000000000000..40632a1bd49b
--- /dev/null
+++ b/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_size.sh.cpp
@@ -0,0 +1,26 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <new>
+
+// void* operator new[](std::size_t);
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
+// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
+
+// REQUIRES: -faligned-allocation
+// RUN: %compile %verify -faligned-allocation
+
+#include <new>
+
+int main ()
+{
+ ::operator new[](4); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
+}